Yii2中的OAuth扩展及QQ互联登录

转自:http://www.easypao.com/post/15

AuthClient Extension for Yii 2
该扩展使YII2加入的 OpenID, OAuth 及 OAuth2 第三方登录。

Installation 安装
通过 composer 安装该应用

php composer.phar require --prefer-dist yiisoft/yii2-authclient "*"

Quick start 快速开始
更改Yii2的配置文件config/main.php,在components中增加如下内容

'components' => [
    'authClientCollection' => [
        'class' => 'yii\authclient\Collection',
        'clients' => [
            'google' => [
                'class' => 'yii\authclient\clients\GoogleOpenId'
            ],
            'facebook' => [
                'class' => 'yii\authclient\clients\Facebook',
                'clientId' => 'facebook_client_id',
                'clientSecret' => 'facebook_client_secret',
            ],
        ],
    ]
    ...
]

更改入口文件,一般是app/controllers/SiteController.php,在function actions增加代码,同时增加回调函数successCallback,大致如下

class SiteController extends Controller
{
    public function actions()
    {
        return [
            'auth' => [
                'class' => 'yii\authclient\AuthAction',
                'successCallback' => [$this, 'successCallback'],
            ],
        ]
    }

    public function successCallback($client)
    {
        $attributes = $client->getUserAttributes();
        // user login or signup comes here
    }
}

在登录的Views中,增加如下代码

<?= yii\authclient\widgets\AuthChoice::widget([
     'baseAuthUrl' => ['site/auth']
]) ?>

以上是官方的说明文档,下面我们来接入QQ互联
增加QQ登录的组件 我这里是放在 common/components/QqOAuth.php 中,源代码如下

<?php
namespace common\components;

use yii\authclient\OAuth2;
use yii\base\Exception;
use yii\helpers\Json;

/**
 *
 * ~~~
 * 'components' => [
 *     'authClientCollection' => [
 *         'class' => 'yii\authclient\Collection',
 *         'clients' => [
 *             'qq' => [
 *                 'class' => 'common\components\QqOAuth',
 *                 'clientId' => 'qq_client_id',
 *                 'clientSecret' => 'qq_client_secret',
 *             ],
 *         ],
 *     ]
 *     ...
 * ]
 * ~~~
 *
 * @see http://connect.qq.com/
 *
 * @author easypao <admin@easypao.com>
 * @since 2.0
 */
class QqOAuth extends OAuth2
{
    public $authUrl = 'https://graph.qq.com/oauth2.0/authorize';
    public $tokenUrl = 'https://graph.qq.com/oauth2.0/token';
    public $apiBaseUrl = 'https://graph.qq.com';

    public function init()
    {
        parent::init();
        if ($this->scope === null) {
            $this->scope = implode(',', [
                'get_user_info',
            ]);
        }
    }

    protected function initUserAttributes()
    {
        $openid =  $this->api('oauth2.0/me', 'GET');
        $qquser = $this->api("user/get_user_info", 'GET', ['oauth_consumer_key'=>$openid['client_id'], 'openid'=>$openid['openid']]);
        $qquser['openid']=$openid['openid'];
        return $qquser;
    }

    protected function defaultName()
    {
        return 'qq';
    }

    protected function defaultTitle()
    {
        return 'Qq';
    }
    
    
    /**
     * 该扩展初始的处理方法似乎QQ互联不能用,应此改写了方法
     * @see \yii\authclient\BaseOAuth::processResponse()
     */
    protected function processResponse($rawResponse, $contentType = self::CONTENT_TYPE_AUTO)
    {
    	if (empty($rawResponse)) {
    		return [];
    	}
    	switch ($contentType) {
    		case self::CONTENT_TYPE_AUTO: {
    			$contentType = $this->determineContentTypeByRaw($rawResponse);
    			if ($contentType == self::CONTENT_TYPE_AUTO) {
                    //以下代码是特别针对QQ互联登录的,也是与原方法不一样的地方 
    				if(strpos($rawResponse, "callback") !== false){
    					$lpos = strpos($rawResponse, "(");
    					$rpos = strrpos($rawResponse, ")");
    					$rawResponse = substr($rawResponse, $lpos + 1, $rpos - $lpos -1);
    					$response = $this->processResponse($rawResponse, self::CONTENT_TYPE_JSON);
    					break;
    				}
                    //代码添加结束
    				throw new Exception('Unable to determine response content type automatically.');
    			}
    			$response = $this->processResponse($rawResponse, $contentType);
    			break;
    		}
    		case self::CONTENT_TYPE_JSON: {
    			$response = Json::decode($rawResponse, true);
    			if (isset($response['error'])) {
    				throw new Exception('Response error: ' . $response['error']);
    			}
    			break;
    		}
    		case self::CONTENT_TYPE_URLENCODED: {
    			$response = [];
    			parse_str($rawResponse, $response);
    			break;
    		}
    		case self::CONTENT_TYPE_XML: {
    			$response = $this->convertXmlToArray($rawResponse);
    			break;
    		}
    		default: {
    			throw new Exception('Unknown response type "' . $contentType . '".');
    		}
    	}
    
    	return $response;
    }
    
    
}

更改 config/main.php 文件,在components中增加,大致如下

'components' => [
        'authClientCollection' => [
        	'class' => 'yii\authclient\Collection',
        	'clients' => [
        		'qq' => [
					'class'=>'common\components\QqOAuth',
					'clientId'=>'your_qq_clientid',
					'clientSecret'=>'your_qq_secret'
				],
        	],
        ]
]

SiteController.php 就按官方那样子

public function successCallback($client)
{
    $attributes = $client->getUserAttributes();
    // 用户的信息在$attributes中,以下是您根据您的实际情况增加的代码
    // 如果您同时有QQ互联登录,新浪微博等,可以通过 $client->id 来区别。

}

最后在登录的视图文件中 增加QQ登录链接

<a href="/site/auth?authclient=qq">使用QQ快速登录</a>

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